All About Pocket Knives

Was curious about how the brass liner was what looks like to be purposely tapered / beveled at the pivot end. Excuse my improper description or terms. Has anyone else seen this?
This is a 1965-69 Stag Case Canoe.
Thank you

I have a 9 dot or 10 dot canoe from 70 or 71 that doesn’t show like yours. I also have a 1984 canoe that also is not like yours. Curious to know what others say.

Rugmar

That piece is called a "catch bit". It provides space for the tip of the large spear blade to fall next to the pen blade. It should be flat up against the brass liner, but that one has a little gap - I would call it a minor manufacturing defect but the catch bit still does its job.

If you measure the thickness of the spring, and subtract the thickness of the blade, what is left is the thickness of the catch bit. The blades on single spring 2 blade knives have to be thinner, or they will collide in the center of the blade well and won't close properly.

This one is tapered in thickness. It looks like a deliberate design so that if flexes against the adjoining liner almost like a lock washer principle. Maybe just over grind on the end by the maker